221369764

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{191}}^1$

素因数の和:337

約数の個数: 96

約数和(自身を含む): 501645312

約数和(自身を除く): 280275548

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 53, 71, 77, 106, 142, 154, 191, 212, 284, 308, 371, 382, 497, 583, 742, 764, 781, 994, 1166, 1337, 1484, 1562, 1988, 2101, 2332, 2674, 3124, 3763, 4081, 4202, 5348, 5467, 7526, 8162, 8404, 10123, 10934, 13561, 14707, 15052, 16324, 20246, 21868, 26341, 27122, 29414, 40492, 41393, 52682, 54244, 58828, 70861, 82786, 94927, 105364, 111353, 141722, 149171, 165572, 189854, 222706, 283444, 289751, 298342, 379708, 445412, 579502, 596684, 718733, 779471, 1044197, 1159004, 1437466, 1558942, 2088394, 2874932, 3117884, 4176788, 5031131, 7906063, 10062262, 15812126, 20124524, 31624252, 55342441, 110684882, 221369764]

約数ペア:

[(1, 221369764), (2, 110684882), (4, 55342441), (7, 31624252), (11, 20124524), (14, 15812126), (22, 10062262), (28, 7906063), (44, 5031131), (53, 4176788), (71, 3117884), (77, 2874932), (106, 2088394), (142, 1558942), (154, 1437466), (191, 1159004), (212, 1044197), (284, 779471), (308, 718733), (371, 596684), (382, 579502), (497, 445412), (583, 379708), (742, 298342), (764, 289751), (781, 283444), (994, 222706), (1166, 189854), (1337, 165572), (1484, 149171), (1562, 141722), (1988, 111353), (2101, 105364), (2332, 94927), (2674, 82786), (3124, 70861), (3763, 58828), (4081, 54244), (4202, 52682), (5348, 41393), (5467, 40492), (7526, 29414), (8162, 27122), (8404, 26341), (10123, 21868), (10934, 20246), (13561, 16324), (14707, 15052)]